Blazer Forum - Chevy Blazer Forums - idle at 3k rpm when start up

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- 2nd Generation S-series (1995-2005) Tech (https://blazerforum.com/forum/2nd-generation-s-series-1995-2005-tech-41/)

- - idle at 3k rpm when start up (https://blazerforum.com/forum/2nd-generation-s-series-1995-2005-tech-41/idle-3k-rpm-when-start-up-28199/)

95Blaz3r

03-02-2009 01:48 PM

idle at 3k rpm when start up

Hi everyone i'm new here with a 95 blazer. I recently bought this car and found this problem but was not able to figure out what is the cause.

Everytime i start up the car it will rev up to 3000rpm and stay there, when driving you won't notice this but at a stop the gauge will stay at 3k rpm for a good 1/2 hour or so before dropping down to normal. Any idea???

swartlkk

03-02-2009 02:00 PM

RE: idle at 3k rpm when start up

Large vacuum leak or bad IAC (idle air control) valve.

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